Since the announcement of Microsoft’s acquisition of Nokia there have been numerous assessments of what this says with regard to Microsoft’s future business model. Are they becoming another Apple clone? Much less attention has been paid however to the remains of Nokia.

You see, Microsoft didn’t acquire everything. They’ve got the traditional mobile phones, the smart devices and all related services. That’s all the important bits right? Not quite, Nokia has been left with a mapping data business, a technology business providing phone companies with infrastructure, and (significantly) a considerable portfolio of patents.

Having sold on their physical devices, Nokia is now free to ruthlessly pursue anybody they feel is “infringing” those patents without worrying about counter attacks against their own technologies. Licensing the patents to Microsoft but keeping the patents themselves in hand, Nokia is left as a potentially very unpleasant patent troll, presumably seeking to harass Microsoft’s rivals. For the full story, see Simon’s InfoWorld article.